knowledge_base/src/tests/Feature/DocumentMigrationTest.php

<?php

namespace Tests\Feature;

use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;
use Tests\TestCase;

class DocumentMigrationTest extends TestCase
{
    use RefreshDatabase;

    public function test_documents_table_has_default_locale_after_migration(): void
    {
        $this->assertTrue(Schema::hasColumn('documents', 'default_locale'));
    }

    public function test_documents_table_no_longer_has_translatable_columns(): void
    {
        $this->assertFalse(Schema::hasColumn('documents', 'title'));
        $this->assertFalse(Schema::hasColumn('documents', 'content'));
        $this->assertFalse(Schema::hasColumn('documents', 'rendered_html'));
    }

    public function test_document_translations_table_exists_with_required_columns(): void
    {
        $this->assertTrue(Schema::hasTable('document_translations'));

        foreach (['document_id', 'locale', 'title', 'content', 'rendered_html', 'created_by', 'updated_by', 'created_at', 'updated_at'] as $col) {
            $this->assertTrue(
                Schema::hasColumn('document_translations', $col),
                "document_translations missing column: $col"
            );
        }
    }

    public function test_document_translations_unique_document_locale(): void
    {
        DB::table('documents')->insert([
            'path' => 'A.md',
            'slug' => 'a',
            'default_locale' => 'en',
            'file_size' => 0,
            'file_hash' => str_repeat('0', 64),
            'file_modified_at' => now(),
            'created_at' => now(),
            'updated_at' => now(),
        ]);
        $docId = DB::table('documents')->where('slug', 'a')->value('id');

        DB::table('document_translations')->insert([
            'document_id' => $docId,
            'locale' => 'en',
            'title' => 'A',
            'content' => '...',
            'rendered_html' => '<p>...</p>',
            'created_at' => now(),
            'updated_at' => now(),
        ]);

        $this->expectException(\Illuminate\Database\QueryException::class);

        DB::table('document_translations')->insert([
            'document_id' => $docId,
            'locale' => 'en',
            'title' => 'duplicate',
            'content' => '...',
            'rendered_html' => '<p>...</p>',
            'created_at' => now(),
            'updated_at' => now(),
        ]);
    }

    public function test_existing_documents_data_is_copied_to_translations(): void
    {
        // Roll the new migration back so the legacy columns exist again
        \Illuminate\Support\Facades\Artisan::call('migrate:rollback', ['--step' => 1]);
        $this->assertTrue(\Illuminate\Support\Facades\Schema::hasColumn('documents', 'title'));

        // Seed a legacy document row directly
        \Illuminate\Support\Facades\DB::table('documents')->insert([
            'path' => 'Legacy.md',
            'title' => 'Legacy Title',
            'slug' => 'legacy-title',
            'content' => '# Legacy body',
            'rendered_html' => '<h1>Legacy body</h1>',
            'file_size' => 0,
            'file_hash' => str_repeat('0', 64),
            'file_modified_at' => now(),
            'created_at' => now(),
            'updated_at' => now(),
        ]);
        $docId = \Illuminate\Support\Facades\DB::table('documents')->where('slug', 'legacy-title')->value('id');

        // Re-run the migration
        \Illuminate\Support\Facades\Artisan::call('migrate');

        // Verify the data was copied to document_translations
        $translation = \Illuminate\Support\Facades\DB::table('document_translations')
            ->where('document_id', $docId)
            ->first();

        $this->assertNotNull($translation, 'Translation row should have been created from legacy data');
        $this->assertSame('Legacy Title', $translation->title);
        $this->assertSame('# Legacy body', $translation->content);
        $this->assertSame('<h1>Legacy body</h1>', $translation->rendered_html);
        $this->assertSame(config('app.locale', 'en'), $translation->locale);

        // Verify documents.default_locale was set
        $defaultLocale = \Illuminate\Support\Facades\DB::table('documents')->where('id', $docId)->value('default_locale');
        $this->assertSame(config('app.locale', 'en'), $defaultLocale);
    }
}